Ruler Gallery

To view a list of rulers others have created or to save your ruler so that others with your computer can find it, visit the ruler gallery.

Create Custom Ruler

Units: centimeters inches

Screen width (in pixels):

Horizontal screen width (in units):

Other Rulers

You should check out Mitchell Charity's very accurate printable paper rules if you'd prefer something you can print out.

If your computer is very well configured, you may be able to use Steve Pomeroy's CSS rulers which will not require that you figure out the horizontal width of your screen.